What is the Greatest Common Factor of 495 and 511?

Greatest common factor (GCF) of 495 and 511 is 1.

GCF(495,511) = 1

We will now calculate the prime factors of 495 and 511, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 495 and 511.

How to find the GCF of 495 and 511?

We will first find the prime factorization of 495 and 511. After we will calculate the factors of 495 and 511 and find the biggest common factor number .

Step-1: Prime Factorization of 495

Prime factors of 495 are 3, 5, 11. Prime factorization of 495 in exponential form is:

495 = 3² × 5¹ × 11¹

Step-2: Prime Factorization of 511

Prime factors of 511 are 7, 73. Prime factorization of 511 in exponential form is:

511 = 7¹ × 73¹

Step-3: Factors of 495

List of positive integer factors of 495 that divides 495 without a remainder.

1, 3, 5, 9, 11, 15, 33, 45, 55, 99, 165

Step-4: Factors of 511

List of positive integer factors of 511 that divides 495 without a remainder.

1, 7, 73

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 495 and 511. The biggest common factor number is the GCF number.
So the greatest common factor 495 and 511 is 1.

Also check out the Least Common Multiple of 495 and 511